Swab for piston-rods.



No. 889,669. PATENTED JUNE 2, 1908. LW. EVENS.

SWAB FOR PISTON RODS.

APPLICATION FILED AUG. 6.1907.

. 12 to prevent I ipping' fiom the :lower.

JAMES W. EVENS OE BIRMINGHAM, ALABAMAP swAn non PISTO -Boos.

nassaeea v ToaLL whom mag concern? V v v Beitknown that I, JAMEs W. Evans, a a citizen ofthe' United-States, residing at Birminglia'm, Jeffersoncounty,'Alabama, have invented certain new and useful --ments in Swabs for Piston-Rods,

the'following is a s'pecification'.a- This invention relates to a piston swab which has been devised for usetwith an air .10 pump orana-logous. piston rod, but adapted "Tto ,be generally applied -as a" lubricating .mea'ns toanymechanical part where it may practically perform its intended function. The primaryobject of the. invention is to produc e areversible swab capable ofbeing 1 3 applied witheither end uppermost. and hav- "ting 11168115111 reverse positionto permit e n of which 1 trance of the lubricant,- which may be sup;

,plieid to'either end of the interior. thereof, and

'side ofthe devicev when in working position. j I

A ffurther'ob'ject-J f the invention is to so construct a swab 'that 'it will'not.'only serve j2'5 eflicientlyas a lubricating means, but. will also operate to prevent the spanneror limiting nuts of a piston rod from working loose, with material advantages inthe operation of the pistonfr'od, and applicable; to and remov l0 able-from the. 'iston rod without in the least interfering 'wit the nuts 'and the remaining l-parts cooperating with the rod. f ,Other obT-ects and advantages will be more fullyhereinafterspecified 'in'relation to 1de-' 3 6 I tails of, structure "which have been incor wporat'ed in the improveddevice to meetvarious contingencies present in piston rodc'on- .rstructions ahdthe necessities of apractical The Sarah embodying" the. features time invention, consists v essentially of two segmental members or sections which are movably -:connectedyantl. free toopen, the membersor sections being. held normally closed; 45, -a nd each-prov'ded'with an inwardly opening "waste receiving. chamb.er,=inner and outer,

flanges separated; by the ufpper- -and lower- 'wallsfof the 'ch mbea'pma othewalls being perforate and the'iothei. imperfo'rate, the walls ei ng positioned inwardl Ija suitabledistance; from the -edges f the anges," and the per-f.

' forate'wall-with t dgacent 'flange forming yalubricant receiving ,annel 'wlfichihay .be conveniently!supplied'f'with lubricant .jby .a

Specification of Letters Patent. Application and am e, 1967. Serial Naesmsa.

,Improveadjacent lubricant receiving channel;

.thermore,

the lubricant-Efrem leaking or "proved swab ap'plie plan -'view' of the device. "sectional view. of the device, the up e1 side in t is figure be-.

- flaring lip 8.

Patented June 2, 1808.

I the outer wall. The

feeding lip located in i by the inner flanges,

inner opening formed :when the members are closed, has such diameter that when the device applied to. a iston rod the spanner or limiting nuts of the atter will not obstruct rcady'access toFthe urthe perforate wall of the chamber of one member is on the same side of the deof the remaining member, so that an effective means is provided for indicating the point of supply of the lubricant, and also the closed wall of each member disposed opposite the perforate wall of the same member prevents waste .and the disadvantages incident to leakage or drip pf the lubricant from the side of the device 0 posite that to *which the lubricant is supplied.

The invention also consists in the details of construction and'arrangement which will be more fully hereinafter specifiedi I In the drawings, Figure 1 s an elevationof a portion of an air thereto. Fig. 2 is a Fig. 3,is a cross Fig. 4 is a pers eetive view ing the lower side in ig. 2.

' The segments or members 1 and'2 are connected by a spring hinge 3, handles or pro- .jections 4b'eing located on opposite sid .the hinge and individually es of projecting from the said segments or .membersto facilitate vice as theimperforatc wall of'the chamber v ump showing the 'im-' '0 ening the latter against the resistance of t 1e spring included in the'hinge organization. Each member is formed with an inwardly :openin r chamber 5, an'inner fiange'6, and an outer 'ange .7 provided with an outwardly he flanges are provided at both ends of'eacli segment or memben-and between-them are segmental open chambers -9 the flanges 6 and *7 bein nected by y The bottoms of'the channels formthe upper terminally conwebs 10 to'comp ete the channels.

andllower walls of the chambers wall llof e'achchamber havin 'asa't 12, and the op os'ite wafi The perforate wall 5 the one periorations, 1mperforate. I v .0 one channel is-adjacent to or at the. same end as-the imperforatewall a oi the adj ac ent channel, to prevent leakage o'r'waste of the lubricant, and-t0 adapt t e complete device to be applied with-either acilitate the sup end uppermost and also to ply of the lubricant to either end of the device. The channel having the imperforate bottom when uppermost will serve as an effective means for retaining the lubricant that may run back thereinto from the piston rod. The chambers 5 are open at their extremities, and when the segments ormem'bers are waste or'eord, is inserted in'normally closed condition, said chambers terminally communicate and practically form a continuous or annularchamber. In the. chambers suitable packing 1 4, such as and'ex osed through the mner openings of the c embers and v slightly 'throughthe swab. e

"The oil or lubricant sup lied to either end of the swab, permeates t5 prO ected inwardly to effectively enlubricate gage an e whole mass of packing and from the latter is fed economically and effectively to thepiston rod, and at any time found necessary the uppermost channel having the erfor'ate bottom may be applied with oil or lubricant.

e' swab also positively operates as a jam means for preventin the spanner or limiting nuts of-thepiston rod, as at 15', from Working loose. To accomplish this important object,'-' the vertical dimension of the swab is such as to fill the space between said nuts, and the latter are frictionally engaged by the inner and'outer flanges 6 and 7 at opposite ends of the swab.

. contacting with the inner flanges 6,'t

- 'iently is applied.

of. It is not essential that any particular packing be adopted. Any'material of an absorbent-nature is adapted for the pur ose." 5'0 The segments or members and hand es or grip devices are preferably cast 'in 'one piece forate feeding channels in o and suitable non-corrosive metal will be used. The dimensions and proportions may be varied; at will Without departing from the essential-features of the invention, which are. to haveja freadily reversible swab having erposed positions at'the ends, and the capabi ity to serve. as a locking means for the spanner nuts of a pis-' ton rod without requiring a particular con struction of nut, or a special structure as a part ofthe swab to accommodate the nuts.

the 'piston rod working my hand in .n'e'sses.

Having thus described the invention, what is claimed, is:

1 A reversible'swab involving movably connected segmental members with packing thereiii and'channels at opposite ends.

therein-and open channels at opposite ends,

apart of the channels having perforate bottoms. p 3. A reversible swab involving movably reversible swab involving movabl y connected segmental members w th packing connected segmental'members with packing therein and .open channels at a part of the channels having toms in reverse positions.

opposite ends,

4. A. reversible s wab involving movablyconnected segmental members with inner 'and-outerflanges at opposite ends forming lubricant receivirg channels, the outerfianges having lips, and a parking held by and eX-' perforate botposed through the inner portions .of the membersw- 1 5. A reversible swab involving movably "connected segmental members with inner and outerfianges and channels at opposite ends, and apacking in the members, combined with a piston ,rod having'spanner nuts, the segments taking up the distance between the nuts and the latter 6. A reversible swab havinginner and outer flange means around a central boreand outer channel means at opposite ends, and a packingexposed through the bore, combined prevented from work-- .ing loose by the flanges.

with a piston engagedby the swab and hav 1 ing spanner nuts, the swab taking up the distance between the nuts and vthe latter en-. gaged by the flange means and leaving the channel means unobstructe '7. A reversible swabhaving a packing-'- h exteriorly accessitherein'and provided wit ble perforate'means' at opposite ends in reverse positionsfor supplying lubricant tothe packing.

8. A reversible therein and provided with lubricant receivswab having a packing.

ing channels at opposite ends, the bottoms 4 of a portion. of the channels being perforate. 9. A reversible swab having a packing ends, the bottoms In testimony whereof I have hereunto set Witnesses: H

' HERB RT LEVY, NANNIE EWING.

therein and provided'withlubricant receiving channels, at opposite of a portion of the channels being perforate and opposite closed bottoms of reverse channelsapresence of two subscribing wit- 

